Molding-machine.



J. H. WOOD il D. C. EPHIGHT.

MOLDING MACHINE, APPLICATmN FILED APHfglmffsis.

Patented Sapin 11, 1917,

5 SHEETSAHEET l.

I. R. WOOD @L D. C. EPRIGHT.

IVIOLDING MACHINE. APPLICATION FILED APR. I4. |913.

. Patented Sept. 11, 191'?.

5 SHEETS-HEET 2 Clava.;

L R.4 WOOD L D. C. EPRSGHT.

Momma MACHINE.

APPLICATION FILED APRI-1,1913. A 192399556@ Eatentd @apt l, 1.91K?.

5 SHEETS-SHEE 3.

l. R WOOD & D. C. EPRIGHT. MOLDING lMACHINE. APPLICATION FILED APR.14, 19:3.

Patented Sept. 11, 1917.

5 SHEETS-SHEET 4.

Y 5,. ggf 1 I.. H

1. R. WOOD L D. C. EPRIGHT.

MOLDING MACHINE.-

APPLICATION FILED APR.14.1913

- Patented Sept. 1i, 191?.

5 SHEE'TS--SHEET 5.

JOHN R. WOOD, 0F NEWARK, NEW JERSEY, AND DANIEL CURTIS EPRIGHT, OIE' SPRING CITY, PENNSYLVANIA, ASSIGNORS, BY MESNE ASSIGNMENTS, TO ABRM COX STOVE COMPANY, OF PHILADELPHIA, PENNSYLVANIA, .ti-CORPORATION OF PENN- SYLVANIA.

IVIOLDING-MACHINE.

Specicatonof Letters Patent.

intenten sept. ii, ier?.

To all whom '25 may concern:

llc .it known that we, (l) JOHN R. Toom (2) Damm; Cursus Ernreirr, residing at (l) Newark, (2) Spring City, in the county of (l) Essex, (2) Chester and State of (l) New Jersey, (2) Pennsylvania, have invented a certain new and useful Improvement in Moldi11g-Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

'lhis invention relates to molding niachines and more particularlv to the means for detachably connecting the flask sections 'of such machine, the invention being applied to a machine of the rock-over type shown in the drawings hereof, wherein Figure l represents a side elevation of a molding machine constructed in accordance with our invention; Fig. 2 an end elevation of the machine, the end chosen being the one shown at t-he right hand of Fig. l; Fig. 3 a vertical sectional view taken through the tlaslt and the supporting platform of the machine; Fig. 4L a longitudinal vertical sectional view through the machine; Fig. 5 a fragmentary plan and Fig. 6 a fragmentary sectional. view of the cope, showing the construction ofthe sami-retaining device and the operating means therefor; Fig. 7 a bottom plan View of the leveling platform; Fig. 8 a vertical sectional detail through one of the corner posts ot said platform; Fig. 9 an elevation of one of the mold shells or casings; and Fig. 'l0 a side elevation of the machine showing the manner of separating the cope and drag preliminarily to the removal of the match plate.

ln the embodiment of our invention illustrated and disclosed herein, there is provided a, supporting base which, for convenience of manipulation, may .constitute part of a truck or carriage having at one end thereof a platform with means for adjusting and leveling the same and at the other end thereof a support for the cope and the drag.y there being vertical standards interposed substantially midway between such ends; means pivotally connecting the cope to said standards whereby it is allowed .to rock from one. end to the other of the base; retaining means (such as hooks) for securing the drag and its bottom plate to the cope, whereby the complete flask may be rocked from one end support of the base to the other; means for separating the drag and cope after the ramming operation, to permit the removal ot the match plate; and sand retaining and discngaging means connected with the cope for supporting the rammed sand until after the removal of the match plate and thereupon permitting it to he dropped into contact with the rammed sand in the drag. Other details of construction will appear hereinafter'.

Describing by reference characters the various parts illustrated herein, l denotes generally the base of the machine, said base in the embodiment shown herein comprising a pair of longitudinal side members connected to form a frame, the base having casters 2 thereon whereby it may be transported from place to place as a truck. Each side member is provided at one end thereof with a vertical post Z3, which posts are adapted to ei'igage the cope when the cope, either alone or with the drag attached thereto, is folded over, as indicated in Fig'. l. The opposite ends of the side members are provided cach with a vertical guideway l, said guidcwa vs beingl adapted to receive the posts 5 of a vertically adjustable plat torni (S. rlhis platform is provided at cach corner with a depending tubular boss 7, and mounted in each tubular boss is a .short post 8, each Y post being supported h v means of a spring 9 in the bottom of the boss. For the purpose of lot-hing these posts at any desired level, we have provided a construction shown more particularl \Y in Figs. S3, fl, 7, and 8. ln this constrimtion l0 denotes a hub or collar which projects downwardly beneath the central portion of the bottoni of the platform (i. and ll a series of rods, one for each hollow boss 7, eat-h rod having one end projected into the boss and' its other end projected into the interior of the hul) or collar 10. A series of flat springs 12 is provided, one for the inner end of each rod 1l, the springs being conveniently secured in place by insertion through slots in the hub 10. 13 denotes a stud which is `centrally mounted within the hub and on which is journaled the inner end of a lever 14. This lever carries, preferably as an integral part thereof, .a series'of cams l5, one for each spring 12. The lever is provided with .an operating handle ist, By moving the lever in the appropriate direction, the cams 15 will engage the springs 12 and press the rods 11 outwardly and into engagement with the posts 8, whereby said posts may be retained in any desired adjusted position. In order to retain the rods 11 in their outwardly projected position, each cam may be provided with a dwell 15a concentric with the pivotal lsupport `V13, whereby the lever will be retained in 'position to keep the rods 11 thrust outwardly into engagement with the posts 8.

16 denotes a pair of longitudinally extending members which may be conveniently supported from the guides 4, as by means of bolts 17. These longitudinally extending members form a supporting base for the vertically extending rods 18 and, 19, the rods 18 being located, at one s ide of and near the central standards 2() and the rods 19 being located at the opposite ends of the members 16. The rods 18 are vertically adjustable, as by being threaded into their respective supporting members 16, lock nuts 18'l being provided to secure the rods in adjusted position. The rods 19 are pivotally supported from the endsef the members 16, their lower ends being threaded into tubular bosses 21 carried at the upper ends of angular arms 22. Each of these arms is pivotally supported and has an inwardly directed end portion 24 which may be weighted, as shown at 25, wherebythe rods 19 will be moved inwardly (that is, toward the center of the truck) by gravity. To prevent these rods from moving beyond a vertical position, the

bosses 21 are provided with shoulders 21 which are adapted to eng-age their respective supporting` members 16 to prevent such movement (see Fig. 1).

Reference has been made to the vertical 'standards 20, located intermediate of the ends of the truck frame. These standards form journals for a shaft 26. This shaft provides'a pivot for the rock-over frame to which the cope is secured. The rock-over frame comprises generallya pair of brackets 27, which are preferably. rigid with the shaft. -Each bracket is provided with a lateral projection 28 at one side of the pivot thereof, there being a rod 29 extending between said projections; also with a grojection 30 which, when the frame is rocked on one side of the standards, is adapted to engage a projection 31 on the appropriate standard, to limit the swinging movement of the flask or the cope thereof. The cope is connected to these brackets by means of arms 32 which are rigid with the cope and have their ends adjustably connected with that portion ofthe bracket which is opposite the projection 8O. This connection is accom- )lished by means of a pin or bolt 33 carried 7y each arm 32 and projecting through a slot 34 in the bracket.

The cope, which is supported by the arms 32, is designated generally by the numeral y This cope is shown as frusto-pyramidal in shape and is. provided at its opposite ends with outwardly projecting flanges 3G' and 37. Ivoted to pins 88 carried by lugs 38" projecting from opposite sides of the cope are latches 39. These latches are cach provided at one end withan inwardly projecting portion 40, for a purpose to be described, and at the opposite end with an operating extension or handle 41. Each latch is preferably provided with a bowed spring 42 which may be conveniently applied to the latch by inserting the ends 43 thereof into slots located on opposite sides of' the pivot of each latch. Each spring 42 has a pair of oppositely inclined surfaces which are adapted to cofperate with the oppositely inclined surfaces 44 of a projection carried by the cope in such manner that the latch will be retained in locking or engaging position and in open or disengaging position, accordingly as one or the other of the inclined surfaces of its spring 42 is in engagement with one or the other of the inclines 44 of the projection 45. The construction affords convenient yielding means for retaining the latches in either of these two positions and for permitting the latches to be swung easily from one posltion to the other.

Thepurpose of the latches 39 is to suspend the drag and bottom board of the flask from the cope and to permitI tlle convenient removal of the drag and bottom board when 100 occasion requires. Through the use of theseV latches, the llask is pivotally supported, either 1n whole or in part, from the standards 20. i j

The drag of the flask is represented at 46 105 and is also frusto-pyramidal in shape, constituting in effect a symmetrical extension of the cope. It is provided at its contracted end with an outwardly projecting flange 47 and at its opposite end with a similar flange v110 48. For convenience of description, the enlarged ends of the cope, drag and flask will be referred to as the bottom thereof while the contracted ends will be referred to as the top thereof.

At its bottom or lower end, the cope is provided with an adjustable sand-retaining device, the purpose of which is to temporarily support the rammed or compacted sandin the cope during the removal of the match 120 plate and to permit such sand to drop onto the rammed or compacted sand in the drag when the match plate is removed. The construction of this retaining device will now be explained in connection with Figs. 1, 2, 4, 5, 125 and G. The sand retaining device is made up of a plurality of interengaging segments 49, 50. These segments are preferably in the shape of flat plates which are slidably mounted upon the bottom face of the cope 130 .Lio

3G. The plates't), in the construction illuscope flange 36 and are each provided at opposite ends thereof with inclined projections 5l. The plates 50 are also opposed to each other and are provided with inclined slots 52. The opposite sides of the projections 5l are substantially parallel,as is the case with the opposite sides of the slots 52. The plates 49 and 50 are adapted to Slide toward and from the vinterior of the cope by means of slots therein through which pass the headedI pins or screws 54, carried by the cope flange For the purpose of so moving the sand-retaining plates, the following construction is provided: denotes a pair of'operating levers, each sliown as pivoted intermediate of its ends on a lug 56 carried yby the cope. One end of the lever is provided with an operating handle 57 and its opposite end is connected to a link58, as indicated at 59. The opposite end of the link is connected to one of the corners of the plate 50 on the opposite side of the cope from the said lever, the point of connection being indicated at G0. At the saine distance from the pivot 5G as the point of connection 59, the lever is also connected to the plate 50 which is on the same side of the cope as said lever, the point of connection -being indicated at 6l. identically the same construction and connections are provided at the opposite .end or the ope fi-.inge from `the parts just described, similar numerals 55-61 being employed to designate these parts. By the construction described, it

'will be apparent that Vthe plates 50 may be kvmoved inwardly or toward the center of the cope by the levers and that the outer iiiclined edges ofthe slots 52 will act upon the outer edges of the inclined projections 51 to move the plates 4l) inwardly, with the result that the plates 49 and 50 will project in- `wardly within the interior of the botto-in of the copeto provide a retaining shelf for the compacted sand, the position of the parts at thistime being shown in Figs. 3 and 4:. It will be evident that, by moving the lever handles 57iii the reverse direction, the inner inclined edges of the slots 52 will cn gage .the correspoinlingl y inclined iiiiicr edges of the projections 51 as the plates 50 are iiio'ved outwardly, with the result that the sand retaining device will be moved outwardly to clear the inner bottoni edge of the cope and permit the sand to drop, the positions of the parts atthis time being shown in F ig. 5.

The cope will'be provided with one or more operating handles 62 foi` convenience of swinging it and the parts attached thereto about its pivotal support.

rlhe principal field ofiise of the flask will 4be in coiniectionwith a match plate, which inay be inserted between the cope and drag and removed therefrom after the rainniing operation. Such a match plate is'iiidicated at (53. For the purpose of pi'operly aliiiing the cope, drag, and match plate, the drag is provided with a pair of upwardly projecting posts (if-l, located on opposite sides thereof, and the cope is provided with a pair of lateral projections G5, each having an aperture adapted to receive the appropriate post, to aline the cope and drag. The vposts are preferably 'triangular in outline and the projections G5 are provided with similar guide recesses (35aL which may be conveniently formed by slottiug said projections and adjustably fitting each slot with a block (SG having its inner end provided with inclined faces (3Ga which define the outer pe-v riphery of and complete the guide aperture 65a. rfhe match plate G3 will be provided with apertures 63 which are adapted to i'c- ,ceive the posts G4- and thereby center the plate with reference to the flask. rlhe bottoin ofr the drag is provided with a bottom board ('-7 which is adapted to be engaged by the inner ends 40 of the latches 39, to retain the sandwithin the iiask when the parts are in the position shown in Figs. l to 4 i11- cliisive.

Reference has been made tothe rod 29. A spring (38 is connected at one end to this rod and at its other eiid to a cross bar (39. rl`hc purpose of this spring is to minimize the jarring of the iiaskby its impact against the posts 3 and 8, according as it is swung from one side to the other of the supporting standards 20.

Cooperating with theposts 5, for a purtoms of the posts 5 at one side of the vertical plane passingthro'ugh the axis of the shaft 70, whereby there will be a tendency to rock the shaft by the downward thrust of the parts supported by the cams. To prevent such rocking of the parts, a gravity latch is provided which is adapted to engage the nnder surface of one of the cams to thereby retain the parts in the positioii'showii in Fig.

` 1. This latch consists of a lever 73 which is pivotcd intermediate of its ends, as indicated at 7-l, and has at its lower e'nd ,an inwardly projecting arm 75 which is adapted to drop by gravity beneath the lower surface 76 of the cam when the shaf 'is roi ated a sufficient distance iii a difecti` i to elevate the platform. TVlllien it is desired to lower the platform, it is only necessary to rock the lever so as to disengage its arm 75 from the under surface of the cam.

lVith the parts constructed as illustratedl and described, the operationwill be as follows z-The flask, with the bottom board 67 removed, will be folded over to the position shown in' dotted lines in Fig.` 1, the flange 37 of the cope resting upon the posts 3. The drag will be filled and rammed while the parts are in this position, the bottom board 67 will be applied and the latches 39 swung inwardly so that the hooked ends the sand retaining plates are in their inward position, so as to form a shelf, the cope is then filled and rammed in the usual manner. It will be observed' that, in this position, the corners 63b of the match plate overhang the posts 18 and 19 and are spaced therefrom a suilicient distance to insure clearance. The upper ends 41 of the latches 39 are moved inwardly, disengaging the hooked lower ends from the bottom board 67 and breaking the suspension between the cope and the drag. The constructior a ud arrangement of the springs 42 and projections 45 retains the latches in this unlocked position. The operator then disengages the lcver arm 75 from the cam and moves the lever 72 upwardly, thereby lowering the platform 6 and the drag which is supported thereby, the cope meanwhile being 'supported by the engagement of the bracket projections 30 with the projections 31 (see Figs. 1 and 10). The match plate 49 followsthe dragv until the corners 49n engage the upper ends of the posts 18 and 19. Further movement of the lever 72 will lower the platform and the drag a suiicient distance ,to provide clearance between the match plate and the drag (see Fig. 10). With the cope and drag thus separated from each other and from the match plate, the cope'may be swung upwardly about its pivot a sufficient distance to enable the match plate drag The cope may then be swung to the other side of the suppotring standards 20, the angle of incliniation given to its walls being such as to enable it to clear the molded sand. The drag part of the fiask isthen removed, and the completed mold and bottom board is ready for removal from the platform 6. Should the parts encounter the posts 19; the manner of pivotally supporting these posts'enables them to swing out wardly freely whereby the removal of the drag and the molded sand will not be interfered with. rlhe completed mold may then be placed upon the floor ready for the retaining casing or shell 77 and the drag returned to the machine and the parts be assembled ready for the next operation.

Having thus described our invention what we claim is The combination of a pair of flask sec-A tions, a bottom board for one of said sections, latches pivoted to the other section -and having means adapted to engage and retain the bottom board, a spring connected to eachof the latches and having oppositely inclined portions arranged on opposite sides of its pivot, and a projection having oppositely inclined faces cooperating with the in clined portions of each spring.

In testimony whereof, we hereunto affix our signatures in the presence of two witnesses.

JOHN R. WOOD. DANIEL CURTIS EPRIGHT.

lVitnesses NICHOLAS BnIsI-IEIM, VILLIAM J. REINER. 

